Preparation device of graphene hydrogel

Abstract

The invention relates to a preparation device of graphene hydrogel, which can effectively monitor the preparation condition of the graphene hydrogel in the preparation process, and belongs to the field of carbon material preparation. The preparation device consists of a stainless steel kettle body, a data monitoring system and a heating plate. The stainless steel kettle body is composed of an exhaust valve, a quick-opening clamp, a support, a kettle body upper seal, a sealing ring, high-pressure glass, a sealing assembly, a high-pressure glass pressing plate and a kettle body lower seal. The data monitoring system is composed of a pressure sensor, a temperature sensor 1 and a temperature sensor 2. And the two heating plates are detachably and symmetrically mounted on the two sides of the stainless steel kettle body. A graphene oxide solution serves as a precursor to be placed in a stainless steel kettle body, graphene hydrogel is formed in the kettle body through self-assembly under the high-temperature and high-pressure conditions generated by a heating plate, data are read through a pressure sensor and a temperature sensor 1 in the preparation process, and form changes are observed through high-pressure glass.

Description

technical field [0001] The invention relates to a graphene hydrogel preparation device, which can effectively monitor the preparation of the graphene hydrogel during the preparation process, and belongs to the field of carbon material preparation. Background technique [0002] Graphene airgel, also known as three-dimensional porous graphene material, is a solid carbon material in which graphene self-assembles from two-dimensional to three-dimensional. The realization of three-dimensional structure also makes it have potential application value in water treatment, catalyst, heat insulation, electrical devices, sensors and so on. [0003] Among the preparation methods of graphene airgel, the hydrothermal reduction self-assembly method is considered to be the most simple and effective method at present. The principle is to use the graphene oxide solution as the precursor to make the two-dimensional structure Self-assemble into a three-dimensional structure, and then dry the fo...

AI Technical Summary

Problems solved by technology

There are two problems in the preparation equipment involved in the existing hydrothermal reduction method used to prepare graphene hydrogel. One is that the material and structure of the reactor are not easy to observe and monitor, and the other is that the heating method is mostly to place the reactor Provide an external heating environment in the heating device, resulting in a difference between the set temperature of the heating device and the actual temperature in the kettle

The above two problems have brought certain difficulties to the monitoring and regulation of the preparation of graphene hydrogels, and have also affected researchers' research on the subsequent performance of graphene aerogels.

Images